/usr/lib/python3/dist-packages/glances/plugins/glances_raid.py is in glances 2.7.1.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 | # -*- coding: utf-8 -*-
#
# This file is part of Glances.
#
# Copyright (C) 2015 Nicolargo <nicolas@nicolargo.com>
#
# Glances is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Glances is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""RAID plugin."""
from glances.compat import iterkeys
from glances.logger import logger
from glances.plugins.glances_plugin import GlancesPlugin
# pymdstat only available on GNU/Linux OS
try:
from pymdstat import MdStat
except ImportError:
logger.debug("pymdstat library not found. Glances cannot grab RAID info.")
class Plugin(GlancesPlugin):
"""Glances RAID plugin.
stats is a dict (see pymdstat documentation)
"""
def __init__(self, args=None):
"""Init the plugin."""
super(Plugin, self).__init__(args=args)
# We want to display the stat in the curse interface
self.display_curse = True
# Init the stats
self.reset()
def reset(self):
"""Reset/init the stats."""
self.stats = {}
@GlancesPlugin._log_result_decorator
def update(self):
"""Update RAID stats using the input method."""
# Reset stats
self.reset()
if self.input_method == 'local':
# Update stats using the PyMDstat lib (https://github.com/nicolargo/pymdstat)
try:
mds = MdStat()
self.stats = mds.get_stats()['arrays']
except Exception as e:
logger.debug("Can not grab RAID stats (%s)" % e)
return self.stats
elif self.input_method == 'snmp':
# Update stats using SNMP
# No standard way for the moment...
pass
# Update the view
self.update_views()
return self.stats
def msg_curse(self, args=None):
"""Return the dict to display in the curse interface."""
# Init the return message
ret = []
# Only process if stats exist and display plugin enable...
if not self.stats or args.disable_raid:
return ret
# Build the string message
# Header
msg = '{:11}'.format('RAID disks')
ret.append(self.curse_add_line(msg, "TITLE"))
msg = '{:>6}'.format('Used')
ret.append(self.curse_add_line(msg))
msg = '{:>6}'.format('Avail')
ret.append(self.curse_add_line(msg))
# Data
arrays = sorted(iterkeys(self.stats))
for array in arrays:
# New line
ret.append(self.curse_new_line())
# Display the current status
status = self.raid_alert(self.stats[array]['status'], self.stats[array]['used'], self.stats[array]['available'])
# Data: RAID type name | disk used | disk available
array_type = self.stats[array]['type'].upper() if self.stats[array]['type'] is not None else 'UNKNOWN'
msg = '{:<5}{:>6}'.format(array_type, array)
ret.append(self.curse_add_line(msg))
if self.stats[array]['status'] == 'active':
msg = '{:>6}'.format(self.stats[array]['used'])
ret.append(self.curse_add_line(msg, status))
msg = '{:>6}'.format(self.stats[array]['available'])
ret.append(self.curse_add_line(msg, status))
elif self.stats[array]['status'] == 'inactive':
ret.append(self.curse_new_line())
msg = '└─ Status {}'.format(self.stats[array]['status'])
ret.append(self.curse_add_line(msg, status))
components = sorted(iterkeys(self.stats[array]['components']))
for i, component in enumerate(components):
if i == len(components) - 1:
tree_char = '└─'
else:
tree_char = '├─'
ret.append(self.curse_new_line())
msg = ' {} disk {}: '.format(tree_char, self.stats[array]['components'][component])
ret.append(self.curse_add_line(msg))
msg = '{}'.format(component)
ret.append(self.curse_add_line(msg))
if self.stats[array]['used'] < self.stats[array]['available']:
# Display current array configuration
ret.append(self.curse_new_line())
msg = '└─ Degraded mode'
ret.append(self.curse_add_line(msg, status))
if len(self.stats[array]['config']) < 17:
ret.append(self.curse_new_line())
msg = ' └─ {}'.format(self.stats[array]['config'].replace('_', 'A'))
ret.append(self.curse_add_line(msg))
return ret
def raid_alert(self, status, used, available):
"""RAID alert messages.
[available/used] means that ideally the array may have _available_
devices however, _used_ devices are in use.
Obviously when used >= available then things are good.
"""
if status == 'inactive':
return 'CRITICAL'
if used < available:
return 'WARNING'
return 'OK'
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